ul,li,img,div,span,body,h1,h2,h3,h4,h5,h6{
    margin:0;
    padding:0;
    list-style:none;
}

/*头部 css*/
.header{
    background:#314631;
    color:#fff;
    height: 100px;
}
.header a{
    color:#fff;
    font-size:14px;
    text-decoration: none;
}
.header a:hover{
    color:#fff;
    text-decoration: underline;
}

.header .nav div{
    float: left;
}
.header .nav .logo{
    line-height: 100px;
    margin-left: 10px;
}
.header .nav .nav_li {
    margin-top:49px;
    margin-left: 20px;
}
.header .nav .nav_li ul li{
    float: left;
    text-align: center;
}
.header .nav .nav_li ul li a{
    width: 80px;
    display: block;
    padding:15px 15px;
    background: #4D6C4D;
    border-right:#346234 1px solid;
    border-left:#86C986 1px solid;
}
.header .nav .nav_li ul li a:hover{
    font-size:16px;
}
.header .nav .nav_li ul li.on a{
    background: #558155;
}